//
//  WBNetworkManager+Extension.swift
//  传智微博
//
//  Created by mac on 2018/3/4.
//  Copyright © 2018年 ZSJ. All rights reserved.
//

import Foundation

// MARK: - 封装新浪微博的网络请求方法
extension WBNetworkManager {
    
    /// 加载微博数据字典数据
    /// - Parameters:
    ///   - since_id: 返回ID比since_id大的微博（即比since_id时间晚的微博），默认为0
    ///   - max_id: 返回ID小于或等于max_id的微博，默认为0
    ///   - completion: 完成回调[list: 微博字典数组/是否成功]
    func statusList(since_id: Int64 = 0, max_id: Int64 = 0, completion: @escaping (_ list:[[String: AnyObject]]?, _ isSuccess: Bool)->()) {
        
        let urlString = "https://api.weibo.com/2/statuses/home_timeline.json"

        let params = ["since_id":"\(since_id)",
            "max_id":"\(max_id > 0 ? max_id - 1 : 0)"]
        
        tokenRequest(URLString: urlString, parameters: params as [String : AnyObject]) { (json, isSuccess) in
            
            // 从 statuses 中获取 statuses 字典数组
            // 如果 as? 失败，result = nil
            let result = json?["statuses"] as? [[String: AnyObject]]
            
//     let data = try! JSONSerialization.data(withJSONObject: [json], options: [.prettyPrinted])
//     (data as NSData).write(toFile: "/Users/mac/Desktop/status.json", atomically: true)
            
            completion(result, true)
        }
    }
    
    /// 返回微博的未读数量
    func unreadCount(completion: @escaping (_ count: Int)->()) {
        
        guard let uid = userAccount.uid else {
            return
        }
        let urlString = "https://rm.api.weibo.com/2/remind/unread_count.json"
        let params = ["uid": uid]
        
        tokenRequest(URLString: urlString, parameters: params as [String: AnyObject]) { (json, isSuccess) in
            
            let dict = json as? [String: AnyObject]
            let count = dict?["status"] as? Int
            
            completion(count ?? 0)
        }
    }
}

// MARK: - 用户信息
extension WBNetworkManager {
    
    func loadUserInfo(completion: @escaping (_ dict: [String: AnyObject])->()) {
        
        guard let uid = userAccount.uid else {
            return
        }
        let urlString = "https://api.weibo.com/2/users/show.json"
        
        let params = ["uid": uid]
        
        // 发起网络请求
        tokenRequest(method: .GET, URLString: urlString, parameters: params as [String: AnyObject]) { (json, isSuccess) in
//            print(json ?? "--+++----")
            // 完成回调
            completion(json as? [String: AnyObject] ?? [:])
        }
    }
}

// MARK: - OAuth相关方法
extension WBNetworkManager {
    

    /// 网络请求异步到底该返回什么，需要什么返回什么？
    /// 加载 accessToken
    /// - Parameters:
    ///   - code: 授权码
    ///   - completion: 完成回调(是否成功)
    func loadAccessToken(code: String, completion: @escaping (_ isSuccess: Bool)->()) {
        
        let urlString = "https://api.weibo.com/oauth2/access_token"
        
        let params = ["client_id": WBAppKey,
                      "client_secret": WBAppSecret,
                      "grant_type":"authorization_code",
                      "code": code,
                      "redirect_uri": WBRedirectURI]
        
        // 发起网络请求
        request(method: .POST, URLString: urlString, parameters: params as [String : AnyObject]) { (json, isSuccess) in
            
            // 直接用字典设置 userAccount 属性
            self.userAccount.yy_modelSet(with: json as? [String: AnyObject] ?? [:])

            
            self.loadUserInfo(completion: { (dict) in
                
                // 使用用户信息字典设置用户账户信息(昵称和头像地址)
                self.userAccount.yy_modelSet(with: dict)
                
                // 保存模型
                self.userAccount.saveAccount()
                
                print(self.userAccount)
                
                // 用户信息加载完成后再， 完成回调
                completion(isSuccess)
            })
            

            
        }
        
    }
}
